/**
 * Copyright (C) 2008-2009 Cristian Olaru <colaru@gmail.com>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *         http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.integrationpath.mengine.dao;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

public interface UtilityDao {
	
	boolean isRatedFirstTime(Long articleId, String ip);

	Double calculateRating(Long articleId);

	List getAllTagsOnce();

	List getAllCategoriesOnce();

	Long getUsersNumber();

	Integer getMediaNumberByType(Integer type, Long articleId);

	boolean isEmailInDatabase(String email);

	boolean isUseridInDatabase(String userid);

	List getLastComments(int size);
	
	List getAllComments();
	
	ResultSet executeQuery(String query) throws SQLException;
}
